Home / 15,188.10-20,953.73-9,217.62

Finding the Fourth Proportional to 15,188.10, 20,953.73 and 9,217.62

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Solution

The fourth proportional to 15,188.10, 20,953.73 and 9,217.62 is: 12,716.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188.10 : 20,953.73 = 9,217.62 : x
  2. Step 2: Convert to fraction form
    15,188.10/20,953.73 = 9,217.62/x
  3. Step 3: Cross multiply
    15,188.10x = 20,953.73 × 9,217.62
  4. Step 4: Simplify right side
    15,188.10x = 193,143,520.72
  5. Step 5: Solve for x
    x = 193,143,520.72/15,188.10
  6. Step 6: Final answer
    x = 12,716.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.